초록 ▼

A sailing craft having hydrodynamically shaped catamaran hulls and tapered configuration rudder assemblies attached to each hull. Low draft keels are attached to the fore one-half bottom portions of the hull and a pitch-sensitive variable camber mast and mail sail assembly is rotatably mounted on a

A sailing craft having hydrodynamically shaped catamaran hulls and tapered configuration rudder assemblies attached to each hull. Low draft keels are attached to the fore one-half bottom portions of the hull and a pitch-sensitive variable camber mast and mail sail assembly is rotatably mounted on a cross-beam framework which interconnects the two hulls. The mast is constructed and rigged to bow with respect to the longitudinal plane of the sailing craft which passes through the roll axis in response to a high velocity wind force. The bow decreases as the wind velocity decreases and the mast rotates to form a camber adjustment through use of battens attached to the mail sail sheet(s). The rudder assembly and control bungy cords and lines permit selective raising and lowering and automatic raising upon contact with underwater obstacles. The deck structure provides for quick dismantling and ease of sailing. Novel shroud line cleats are incorporated into the rigging and the hull has a textured surfce which promotes wetting by water for higher sailing speeds.

대표청구항 ▼

A sailing craft comprising, in combination, at least two hulls arranged in parallel configuration and separated by a longitudinal plane positioned along the roll axis and having an interconnecting means joining the same, at least one of said hulls having a keel integrally formed therewith and positi

A sailing craft comprising, in combination, at least two hulls arranged in parallel configuration and separated by a longitudinal plane positioned along the roll axis and having an interconnecting means joining the same, at least one of said hulls having a keel integrally formed therewith and positioned under a portion of the fore two-thirds of said hull, the aft portion of said hull tapering to stern section, a rudder assembly contained in the stern section of said hull with continuous curvature with respect to the taper of said hull end section, a rudder mounted in said assembly for steering said sailing craft and adapted for pivoting into and away from a steering position, a mast and main sail assembly mounted on said craft, said mast rotatably mounted on said interconnecting means and secured thereon in substantially vertical disposition by cable means comprising a front cable and cable stays, said main sail adapted to be supported in a raised position by said mast and having a series of vertically spaced battens attached thereto, at least one main sail anchor shroud adapted for connecting the trailing corner of said main sail to said interconnecting means, said mast and main sail assembly being pitch-sensitive and adapted to form variable camber adjustments and to form a concave bow therein with respect to the longitudinal plane between said hulls in response to a first, wind force exerted thereagainst and to adopt a high aspect configuration when in the concave bowed shape and adapted to straighten the bow curvature therefrom and form a camber adjustment therein at a second, lower wind velocity and to adopt a low aspect configuration when in straightened shape.